Bounds on the cosmological constant
p. 0197 | Joshi, P. S.; Chitre, S. M.

Trans-Himadri Thrust and domal upwarps immediately south of collision zone and tectonic implications
p. 0200 | Valdiya, K. S.

Analysis of allergenicity and hypersensitivity of Prosopis juliflora pollen grains in Guinea pigs
p. 0210 | Thakur, Lndu Shekhar; Sharma, J. D.

Current Science--50 years ago
p. 0213

Announcements
p. 0214

Seventy-fourth Indian Science Congress held at Bangalore, 1987 - Summaries Of Lectures Delivered
p. 0215

Synthesis of 4,6-dinoiethyl-3,7-diaryl-2,8-dioxo-2H,8H-benzo[1,2-b:5,4-b'] dipyrans as potential insecticides
p. 0234 | Ashok, D.; Sharma, P. N.

Synthesis of 4-(5-nitro-2-furfurylidene)amino-3-mercapto-5-(substituted)-l,2,4-triazoles as possible antibacterial agents
p. 0236 | Holla, B. S.; Kalluraya, B.; Sridhar, K. R.

Sperm abnormalities in a natural population of Poecilocems pictus (Fabr)
p. 0238 | Shyama, S. K.; Rahiman, M. Abdul

Use of unsuckled bovine serum in tissue culture
p. 0239 | Paranjape, Smita P.; Kadam, V. D.; Wagh, U. V.; Gupta, N. P.

An interesting new species of Cylindrospermum Kütz: C. Anabaenoides, sp nov-- a blue green alga
p. 0241 | Bhongale, U. D.; Singh, R. P. R.

Book Reviews
p. 0243

Announcements
p. 0243